Hi, Trxn charges in NSE are as below which the broker has to pay to the exchange:
Futures : Rs 190/Crore
Options : 5000/Crore of premium
Most broker charge more than that as they include clearing charges or other charges. So just check the brokerage calculator of brokers and make your wise decision.. Bottom line, who ever has low clearing charges is the best
ProStocks is charging all Transaction Charges strictly as levied by Exchange , life time free demat and trading account and also does not do Prop Trading for safety of client funds and securities.
ProStocks also provide comparison with other stock broker charges.